I need help to find the value of x. Round to the nearest tenth

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

Which expression shows the sum of the polynomials with like terms grouped together